Change in coreboot[master]: Documentation/coding_style.md: Avoid weakly linked symbols

[Arthur Heymans (Code Review)]

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/58934 )

Change subject: Documentation/coding_style.md: Avoid weakly linked symbols
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Documentation/coding_style.md: Avoid weakly linked symbols

Change-Id: If70d38c5c646c1e8365bb16d3292cebb2787eba2
Signed-off-by: Arthur Heymans 
---
M Documentation/contributing/coding_style.md
1 file changed, 10 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/34/58934/1

diff --git a/Documentation/contributing/coding_style.md b/Documentation/contributing/coding_style.md
index e3c92af..e32c83c 100644
--- a/Documentation/contributing/coding_style.md
+++ b/Documentation/contributing/coding_style.md
@@ -960,6 +960,16 @@
    : /* outputs */ : /* inputs */ : /* clobbers */);
 ```

+Weakly linked symbols
+---------------
+
+Weakly linked symbols should generally be avoided if possible. Weakly linked
+symbols like functions, which are often just a stubs, result in runtime
+problems due to the lack of a proper implementation, where they could
+otherwise be caught at compiletime. When calling functions in common code
+that might not be implemented by all platforms, it is better to guard the
+call with a conditional using a Kconfig parameter.
+
 References
 ----------